Precambrian
音標[pri:'k?mbri?n] 讀音漢語翻譯
n. 前寒武紀, 前寒武紀岩
英文解釋:
名詞 precambrian:
- the eon following the Hadean time and preceding the Phanerozoic eon; from about 3,800 million years ago until 544 million years ago同義詞:Precambrian eon, Precambrian aeon, Precambrian period
詳細解釋:
Pre.cam.bri.an
adj.(形容詞)Of, belonging to, or being the oldest and largest division of geologic time, preceding the Cambrian Period, often subdivided into the Archeozoic and Proterozoic eras, and characterized by the appearance of primitive forms of life.See table at geologic time 前寒武紀的:地質年代中最古老和最大的階段的、屬於這一階段的或處於這一階段的,其前為寒武紀期,寒武紀期又可細分為始生代和原生代,特徵為原始生命形式的出現參見 geologic timen.(名詞)The Precambrian Era.前寒武紀時代
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